Does anyone know of a 3d program which can render scenes in wireframe with hidden lines ? Most progs can do wireframe renders, but you also get all the lines, that are supposed to be hidden behind other geometry.

Another way you can get max to do this (other programs too, I'm sure), is to make your normal wireframe texture mesh, then clone the object, scale it down slightly, and apply a flat black texture to it. I've done this on a number of occasions.

For doing the scaling, in Max anyway, the best way is to go into edit mesh mode, select all the faces, then extude by -1 or something, with "Local" selected. It'll look a lot better.

I probably should have explained what I wanted to do with this. All I want is to roughly construct complex scenes in 3d and then paint them over in PhotoPaint in stead of doing all the perspective work with a ruler and pen. The viewport capture should be adequate for this.